In-Line planetary gearboxes

Access SQ : ECONOMICAL, RELIABLE, PRECISE

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Access SQ

ECONOMICAL, RELIABLE, PRECISE

Access SQ is a low-backlash planetary gearbox designed for moderate to medium-duty applications with variations of torque. It is popular in cartesian pick&place robots.

Acceleration capacity +++
Fast reversals +++
Radial load rating +++
Axial load rating +
Stiffness +++
Precision ++
Economy +++++
Suitable to servomotor applications YES
Number of sizes in this line 3 (40 to 90)
Angular backlash <5 arc-min (1 stage) or <8 arc-min (2 stages)
Optional backlash  <3 arc-min (1 stage) or <5 arc-min ( 2 stages)
Available ratios 3 to 100
Motor shaft connection Balanced coupling
 
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INTERNAL CONSTRUCTION

Access SQ is an economical, reliable low-backlash planetary gearbox.

The planet carrier is a cage, which provides stiffness and acceleration capacity. It is monobloc with the output shaft.

High radial loads can be accepted thanks to the 2 radial ball bearings supporting the shaft.

The planetary ring is monobloc (belongs to the housing), to reinforce stiffness.

This construction improves acceleration capacity and acceptance of torque variations.

We recommend this line for applications using application factor Ka<1.45 (refer to the information section for more details about application factors).

 

 

 

 

 

In 2 stage configurations (ratios 12 to 100), the input stage is cantilevered (does not use a cage), in order to lower the intertia, the weight and the length of the gearbox. The output stage always includes a cage, in order to provide stiffness and longer life in heavy-duty conditions.

 

The motor shaft connection is a balanced coupling, so the efforts on your motor bearings are minimal.

 

Installation is fast and easy thanks to a 1-screw lock to your motor shaft.

 

The gearbox will be delivered with the adapting flange corresponding to your motor.

 

access LINE FEATURES

MEDIUM ACCELERATION CAPACITY

The planet carrier is a cage, designed to increase torsional stiffness. It is strongly supported by 2 radial ball-bearings, to ensure perfect alignment of the gears, even at maximum torque. This design is adapted to moderate to medium-duty torque variation or acceleration where a particularly low noise level is not required.

LONG-LASTING PRECISION

High-precision planet gears in carburized and quenched steel allow high torque density and strong accelerations, year after year, without loss of precision.

They are supported by large full-complement needles (needle bearings without a cage), in order to maximize torque capacity and lifetime.

The Access line features low-backlash (under 5 arc-min backlash for 1-stage gearboxes, and under 8 arc-min backlash for 2 stages gearboxes)

MONOBLOC, FORGED RING GEAR

The ring gear belongs to the housing, what increases stiffness and allows sharp variations of torque and acceleration.

SAFETY FOR YOUR MOTOR SHAFT

Access features a standard, balanced coupling, to limit vibration on your motor shaft and prolounge your motor's bearings life.

TECHNICAL DATA

  Ratio

Access

SQ-050

Access

SQ-070

Access

SQ-090

Access

SQ-120

Rated torque

T2n(1) (Nm)

3 - 29 54 170
4 11 30 105 205
5 9 24 81 160
7 7 22 66 153
10 5 15 45 102
12 - 29 54 170
15 - 29 54 170
16 11 30 105 205
20 11 30 105 205
21 - 29 54 170
25 9 24 81 160
28 11 30 105 205
30 - 29 54 170
35 9 24 81 160
40 11 30 105 205
50 9 24 81 160
70 7 22 66 153
100 5 15 45 102

Peak torque

Tmax(2) (Nm)

3 - 57 107 338
4 19 60 184 410
5 14 47 130 299
7 14 46 128 292
10 13 43 116 260
12 _ 57 107 338
15 - 57 107 338
16 19 60 184 410
20 19 60 184 410
25 14 47 130 299
28 19 60 184 410
30 - 57 107 338
35 14 47 130 299
40 19 60 184 410
50 14 47 130 299
70 14 46 128 292
100 13 43 116 260
Emergency stop torque Tx (3) 1,5*Tmax
Angular backlash (arc-min) 1 stage  standard ≤5 ;reduced ≤3
2 stages standard ≤8 ;reduced ≤5
Nominal input speed (4) (rpm) 4,000 3,700 3,500 2,700
Maximum input speed (5) (rpm) 8,000 8,000 7,000 6,000
Maximum radial load (6) (N) 800 1,700 2,800 5,000
Maximum axial load (N) 700 1,550 1,900 4,000
Efficiency at full load (%) (7) 1 stage  >97
2 stages >95
Torsional stiffness (Nm/arc-min) 1,3 3,7 12 25
Lifetime (h)(8) 20,000
Min/max operating temperature (°C)(9) -10 / +45
Max housing temperature (90°) 90
Protection class IP 64
Noise level(dB)(10) <57 <58 <60 <65
Lubricant Sumico MP 2 grease (lubricated for life)
Color Capri blue (RAL 5019)
Input flange Anodized Aluminum
  1. Calculation based on the ISO 6336-2 standard (life = 20,000 h, speed = nominal speed, internal temp = 60°C , Application Factor = 1,25).
  2. Calculation based on the ISO 6336-2 standard (life = 2,000 h, speed = nominal speed, internal temp = 60°C , Safety Factor = 1,4). This rating will not provide a 2,000 hours life if used at max speed. Contact us to get an estimation of the product lifetime in your application. Using a torque higher than the rated torque may affect the gearbox precision.
  3. 1000 occurrences maximum.
  4. Speed at which the nominal torque is applicable 20,000 hours.
  5. Peak speed only. 
  6. Applied at the middle of the output shaft at 100 rpm.
  7. Measured at full load and at 25°C
  8. Lifetime at nominal torque and speed. Consult us to obtain a free estimation of lifetime in your working conditions
  9. Room temperature. Refer to temperature factors in dedicated section.
  10. At nominal speed, measured at 1m.

DOWNLOAD AREA

Drawings will be available soon. In the meantime please click here to request the datasheets and 3D drawings.

 

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